Now showing items 1-6 of 6
Chemical trends in the Galactic halo from APOGEE data
(OXFORD UNIV PRESS, 2016-11)
The galaxy formation process in the A cold dark matter scenario can be constrained from the analysis of stars in the Milky Way's halo system. We examine the variation of chemical abundances in distant halo stars observed ...
The Gaia-ESO Survey: Low-α element stars in the Galactic bulge
(EDP Sciences, 2017-06)
A.R.B., P.d.L., and V.H. acknowledge financial support form the ANR 14-CE33-014-01. This work was partly supported by the European Union FP7 programme through ERC grant number 320360 and by the Leverhulme Trust through ...
The Gaia-ESO Survey: Separating disk chemical substructures with cluster models⋆ Evidence of a separate evolution in the metal-poor thin disk
(EDP SCIENCES, 2016-02)
Context. Recent spectroscopic surveys have begun to explore the Galactic disk system on the basis of large data samples, with spatial distributions sampling regions well outside the solar neighborhood. In this way, they ...
Mapping the outer bulge with RRab stars from the VVV Survey
(EDP SCIENCES, 2016-07)
Context. The VISTA Variables in the Vía Láctea (VVV) is a near-IR time-domain survey of the Galactic bulge and southern plane. One of the main goals of this survey is to reveal the 3D structure of the Milky Way through ...
The Emergence of the Infrared Transient VVV-WIT-06
(Institute of Physics Publishing, 2017-11)
We report the discovery of an enigmatic large-amplitude (ΔKs >10.5 mag) transient event in near-IR data obtained by the VISTA Variables in the Via Lactea (VVV) ESO Public Survey. The object (designated VVV-WIT- 06) is ...
SCORPIO - II. Spectral indices of weak Galactic radio sources
(Oxford University Press, 2018-01)
In the next few years the classification of radio sources observed by the large surveys will be a challenging problem and spectral index is a powerful tool for addressing it. Here we present an algorithm to estimate the ...